yamlfmt: 0.20.0 -> 0.21.0 (#477325)

pkgs/by-name/ya/yamlfmt/package.nix

@@ -7,13 +7,13 @@
 
 buildGoModule (finalAttrs: {
   pname = "yamlfmt";
-  version = "0.20.0";
+  version = "0.21.0";
 
   src = fetchFromGitHub {
     owner = "google";
     repo = "yamlfmt";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-KMIkll7seKslvb4ErelpKxWg/T2P9FLYKfTyAEWlbWk=";
+    hash = "sha256-tiPTTAPqXp8ptEKsAII3sTiMCneiWEXg4pl2F1Nb+8A=";
     leaveDotGit = true;
     postFetch = ''
       git -C "$out" rev-parse --short HEAD > "$out/.git_head"
@@ -21,7 +21,7 @@ buildGoModule (finalAttrs: {
     '';
   };
 
-  vendorHash = "sha256-Cy1eBvKkQ90twxjRL2bHTk1qNFLQ22uFrOgHKmnoUIQ=";
+  vendorHash = "sha256-UTfbfAjmWKrHr/YxaWuaFswF3EnqcE8Otnz/sPoYT5w=";
 
   ldflags = [
     "-s"